Current leakage protection circuit, power socket and electronic device using same

a current leakage protection and circuit technology, applied in the direction of emergency protective circuit arrangements, emergency protective arrangements for limiting excess voltage/current, coupling device connections, etc., can solve the problems of user electric shock, certain electrical potential in the metal shell of the electronic device,

Active Publication Date: 2014-08-05
FU TAI HUA IND SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, current leakage may occur between a metal shell of the electronic device and a live wire of the power supply, which causes a certain electrical potential in a metal shell of the electronic device.
In this circumstance, when a user accidentally touches the metal shell of the electronic device, the user may suffer electric shock.

Method used

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  • Current leakage protection circuit, power socket and electronic device using same
  • Current leakage protection circuit, power socket and electronic device using same
  • Current leakage protection circuit, power socket and electronic device using same

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Embodiment Construction

[0011]Reference will be made to the drawings to describe certain exemplary embodiments of the present disclosure.

[0012]FIG. 1 is a diagram of a current leakage protection circuit 100 according to an embodiment of the present disclosure. The current leakage protection circuit 100 may be connected between a power supply 200 and an electronic device 300 to avoid current leakage at the electronic device 300 and protect a user of the electronic device 300. The power supply 200 may be an alternating-current (AC) power supply, namely, a mains supply, which outputs a power voltage through two output terminals 210 and 220 thereof. The electronic device 300 includes two input terminals 310 and 320 for receiving the power voltage, and a ground terminal 330 for grounding a shell 340 of the electronic device 300.

[0013]The current leakage protection circuit 100 includes a first AC input terminal 101, a second AC input terminal 102, a first AC output terminal 103, a second AC output terminal 104, ...

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Abstract

A current leakage protection circuit includes a first input terminal, a second input terminal for receiving a power voltage and a current leakage detection terminal configured for detecting a current leakage from an electronic device. A control circuit of the current leakage protection circuit is configured for providing a control signal to control a first switch circuit to switch off a first connection between the first input terminal and a first output terminal and to control a second switch circuit to switch off a second connection between the second input terminal and a second output terminal when the current leakage detection terminal detects current leakage of the electronic device.

Description

BACKGROUND[0001]1. Technical Field[0002]The present disclosure relates to current leakage protection technology, and more particular, to a current leakage protection circuit, and a power socket and an electronic device using the current leakage protection circuit.[0003]2. Description of Related Art[0004]Some electronic devices use power cords connected to power sockets to receive general purpose alternating-current (AC) power supply. However, current leakage may occur between a metal shell of the electronic device and a live wire of the power supply, which causes a certain electrical potential in a metal shell of the electronic device. In this circumstance, when a user accidentally touches the metal shell of the electronic device, the user may suffer electric shock.[0005]What is needed is to provide a means that can overcome the above-described limitations.BRIEF DESCRIPTION OF THE DRAWINGS[0006]The components in the drawings are not necessarily drawn to scale, the emphasis instead p...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): H02H3/16
CPCH01R13/7135H02H3/16H02H3/04H02H3/162H01R13/6683
InventorHUANG, REN-WENWANG, YIN-ZHANZHANG, JUN-WEICHIEN, CHIA-HUNGCHUANG, TSUNG-JENWONG, SHIH-FANG
OwnerFU TAI HUA IND SHENZHEN